Ultrasonic Testing uses sound waves of short wavelength and high frequency to detect flaws or measure material thickness. Such mechanical waves can travel large distances in fine grain metal, in the form of a divergent wave with progressive attenuation.
Ultrasonic Testing involves pulsed beams of ultrasound. In the simplest instruments a single probe, hand-held, is placed on the specimen surface. An oscilloscope display with a time-base shows the time that it takes for an ultrasonic pulse to travel to a reflector (a flaw, the back surface, or other free surface) in terms of distance across the oscilloscope screen - the so-called A-scan display. The height of the reflected pulse during Ultrasonic Testing is related to the flaw size as seen from the transmitted probe. The relationship of flaw size, flaw distance and flaw reflectivity are complex and considerable skill is required to interpret the display.
Ultra Sonic Testing is used to test welds, castings and wrought products e.g. rolled plate or forgings.
All our Ultrasonic Testing Techncians are PCN LII qualified and are Confined Space Trained, all carry the latest Digital Sets and Laptops so that reports can be generated on site for instant results. We also have Cygnus Intrinsically Safe Thickness Meters which are ideal for use in potentially explosive environments such as Chemical Plants / Gas Plants, these sets also mean there is no need for removing paintwork / rust etc.